Kawasaki KSF400 KFX400 / Suzuki LTZ400 / Arctic Cat DVX400 / Suzuki DR‑Z400 Valve Set w/ Oil Seals Intake + Exhaust Made in Taiwan

OVERVIEW

This complete valve replacement kit restores proper cylinder sealing and compression for your off-road engine rebuild or routine maintenance. Designed specifically as an intake and exhaust valve set paired with four stem oil seals, it delivers reliable performance using durable SUH35B heat-resistant steel. The assembly is engineered to match factory tolerances and fits select Kawasaki, Suzuki, and Arctic Cat models out of the box.

ENGINEERING & PERFORMANCE

Engineered to maintain stable compression and prevent oil blow-by, this valve assembly keeps the combustion chamber properly sealed under high-stress riding conditions. The valves are machined from SUH35B heat-resistant steel and treated with a nitride surface finish, which significantly increases tensile strength, reduces premature wear, and resists corrosion from heat cycling. Built in an ISO 9001 certified facility to strict dimensional tolerances, the set drops directly into the stock cylinder head without modification, ensuring smooth valve train operation and consistent throttle response.

KEY FEATURES

• Complete valve kit containing 2 intake valves, 2 exhaust valves, and 4 valve stem oil seals
• Constructed from SUH35B heat-resistant steel for extended service life
• Surface nitride finished to enhance strength, wear resistance, and corrosion protection
• Manufactured under ISO 9001 quality management standards
• Provides direct OEM-style fitment and performance metrics
• Assembles everything needed for a top-end valve job into one package

TECHNICAL SPECIFICATIONS

• Part Name: Complete Valve Set with Oil Seals (Intake + Exhaust)
• Component Type: Cylinder Head Valves and Stem Seals
• Material: SUH35B Heat-Resistant Steel
• Supported Years: 2000–2020
• Compatible Trims: KSF400, KFX400, LTZ400, DVX400, DR-Z400, DR-Z400E, DR-Z400S

FITMENT

• Kawasaki KSF400 (2003–2006)
• Kawasaki KFX400 (2003–2006)
• Suzuki LTZ400 (2003–2009)
• Suzuki DR‑Z400 (2000–2006)
• Suzuki DR‑Z400E (2000–2007)
• Suzuki DR‑Z400S (2000–2020)
• Arctic Cat DVX400 (2004–2008)

WHY RIDERS CHOOSE THIS

Riders select this replacement valve set because it eliminates the guesswork and high markups typically associated with dealership parts stores. The combination of SUH35B steel construction and professional nitride finishing ensures the components resist warping and degradation under sustained heat, which directly translates to maintained compression and fewer top-end failures. By including both intake and exhaust valves alongside fresh stem seals, the kit guarantees a complete air-tight seal that stops oil from leaking into the combustion chamber during rebuilding. It mounts cleanly to the original cylinder head architecture, giving mechanics and weekend riders a straightforward path to long-term engine longevity without costly trial-and-error.